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1. 发明申请

WO02059702A3 VARIABLE POWER CONTROL FOR PROCESS CONTROL INSTRUMENTS 审中-公开
标题翻译：过程控制仪表的变量功率控制
公开(公告)号：WO02059702A3
公开(公告)日：2003-08-21
申请号：PCT/US0200546
申请日：2002-01-11
申请人： INVENSYS SYS INC , COOK WARREN E , KOSTADINOV VLADIMIR
发明人： COOK WARREN E , KOSTADINOV VLADIMIR
IPC分类号： G05B19/042
CPC分类号： G05B19/0423 , G05B2219/25428 , G05B2219/31121 , G05B2219/33192 , G05B2219/33208 , G05B2219/34312 , Y10T307/406
摘要： A process control instrument includes a sensor/actuator portion and a transmitter portion connected to the sensor/actuator portion. The transmitter portion is operable to communicate with other process variable transmitters through a communication network. The transmitter includes a processing module and a power module operable to generate a power output supplied to at least the transmitter portion, wherein the power module is operable to adjust the power output based on a power control signal. Moreover, the power control signal may be generated by a controller device remote from the process control instrument and communicated to the process control instrument over the communication network. Additionally, the power module includes a power control module for adjusting the power output. This power control module includes an amplitude limiter operable to limit a power input to the process control instrument according to a controllable amplitude limit, and a power rate of change unit operable to limit a rate of change of the power input to the process control instrument according to a controllable adjustment rate limit.
摘要翻译：过程控制仪器包括传感器/致动器部分和连接到传感器/致动器部分的发射器部分。发射机部分可操作以通过通信网络与其他过程变量发射机通信。发射机包括处理模块和可操作以产生提供给至少发射机部分的功率输出的功率模块，其中功率模块可操作以基于功率控制信号来调节功率输出。此外，功率控制信号可以由远离过程控制仪器的控制器设备生成，并通过通信网络传送到过程控制仪器。此外，功率模块包括用于调节功率输出的功率控制模块。该功率控制模块包括幅度限制器，其可操作以根据可控幅度限制对过程控制仪器的功率输入;以及功率变化单元，其可操作以将输入到过程控制仪器的功率的变化率限制为达到可控的调整率限制。

2. 发明申请

WO2002059702A2 VARIABLE POWER CONTROL FOR PROCESS CONTROL INSTRUMENTS 审中-公开
标题翻译：过程控制仪表的变量功率控制
公开(公告)号：WO2002059702A2
公开(公告)日：2002-08-01
申请号：PCT/US2002/000546
申请日：2002-01-11
申请人： INVENSYS SYSTEMS, INC. , COOK, Warren, E. , KOSTADINOV, Vladimir
发明人： COOK, Warren, E. , KOSTADINOV, Vladimir
IPC分类号： G05B19/042
CPC分类号： G05B19/0423 , G05B2219/25428 , G05B2219/31121 , G05B2219/33192 , G05B2219/33208 , G05B2219/34312 , Y10T307/406
摘要： A process control instrument includes a sensor/actuator portion and a transmitter portion connected to the sensor/actuator portion. The transmitter portion is operable to communicate with other process variable transmitters through a communication network. The transmitter includes a processing module and a power module operable to generate a power output supplied to at least the transmitter portion, wherein the power module is operable to adjust the power output based on a power control signal. Moreover, the power control signal may be generated by a controller device remote from the process control instrument and communicated to the process control instrument over the communication network. Additionally, the power module includes a power control module for adjusting the power output. This power control module includes an amplitude limiter operable to limit a power input to the process control instrument according to a controllable amplitude limit, and a power rate of change unit operable to limit a rate of change of the power input to the process control instrument according to a controllable adjustment rate limit.
摘要翻译：过程控制仪器包括传感器/致动器部分和连接到传感器/致动器部分的发射器部分。发射机部分可操作以通过通信网络与其他过程变量发射机通信。发射机包括处理模块和可操作以产生提供给至少发射机部分的功率输出的功率模块，其中功率模块可操作以基于功率控制信号来调节功率输出。此外，功率控制信号可以由远离过程控制仪器的控制器设备生成，并通过通信网络传送到过程控制仪器。此外，功率模块包括用于调节功率输出的功率控制模块。该功率控制模块包括幅度限制器，其可操作以根据可控幅度限制对过程控制仪器的功率输入;以及功率变化单元，其可操作以将输入到过程控制仪器的功率的变化率限制为达到可控的调整率限制。

3. 发明申请

WO2004023081A2 MULTI-MEASUREMENT VORTEX FLOW METER 审中-公开
标题翻译：多重测量VORTEX流量计
公开(公告)号：WO2004023081A2
公开(公告)日：2004-03-18
申请号：PCT/US0326969
申请日：2003-08-29
申请人： INVENSYS SYS INC , COOK WARREN E , LEWICKE JOSEPH J , ALLSTROM PETER E , VIGNOS JAMES H
发明人： COOK WARREN E , LEWICKE JOSEPH J , ALLSTROM PETER E , VIGNOS JAMES H
IPC分类号： G01F20060101 , G01F1/00 , G01F1/32 , G01F1/86 , G01F15/02 , G01F25/00 , G01N9/26 , G01N31/00 , G06F19/00 , G01F
CPC分类号： G05F3/02 , G01F1/3254 , G01F1/86 , G01F15/024 , G01F25/0007 , G01N9/26
摘要： Two-wire transmitters are described in which the required voltage that a control room must supply to the transmitter is lower at high current than at low current, thus freeing up more voltage for other uses, and in which a constant set of operating voltages may be maintained. A corrected pressure in a vortex flow meter may be determined that reflects the mass flow rate. Thus, the mass flow rate may be determined based on the corrected pressure reading and a measured volumetric flow rate. Density may be determined from pressure and temperature using a table containing error values based on a standard density determination and a relatively simple approximation. During operation of a flow meter, the stored error values may be linearly interpolated and the approximation may be computed to determine the density from the stored error value.
摘要翻译：描述了两线式变送器，其中控制室必须向变送器提供的所需电压在高电流时低于低电流，从而释放更多的电压用于其他用途，并且其中一组恒定的工作电压可以是保持。可以确定涡流流量计中校正的压力，其反映质量流量。因此，质量流量可以基于校正的压力读数和测量的体积流量来确定。可以使用包含基于标准密度测定和相对简单近似的误差值的表从压力和温度确定密度。在流量计的操作期间，存储的误差值可以被线性内插，并且可以计算近似值以从存储的误差值确定密度。

4. 发明申请

WO2004023081A3 MULTI-MEASUREMENT VORTEX FLOW METER 审中-公开
公开(公告)号：WO2004023081A3
公开(公告)日：2004-03-18
申请号：PCT/US2003/026969
申请日：2003-08-29
申请人： INVENSYS SYSTEMS, INC. , COOK, Warren, E. , LEWICKE, Joseph, J. , ALLSTROM, Peter, E. , Vignos, James, H.
发明人： COOK, Warren, E. , LEWICKE, Joseph, J. , ALLSTROM, Peter, E. , Vignos, James, H.
IPC分类号： G01N31/00
摘要： Two-wire transmitters are described in which the required voltage that a control room must supply to the transmitter is lower at high current than at low current, thus freeing up more voltage for other uses, and in which a constant set of operating voltages may be maintained. A corrected pressure in a vortex flow meter may be determined that reflects the mass flow rate. Thus, the mass flow rate may be determined based on the corrected pressure reading and a measured volumetric flow rate. Density may be determined from pressure and temperature using a table containing error values based on a standard density determination and a relatively simple approximation. During operation of a flow meter, the stored error values may be linearly interpolated and the approximation may be computed to determine the density from the stored error value.

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